Heating apparatus.



J.'A. ALMIRALL. HEATING APPARATUS. APPLICATION rum) OUT. 21, 1909.

Patented Sept. 27, 1910.

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INVENTOR .ITNESSS:

THE NORRIS PETERS ca, WASHINGTON, n. c.

J. A. ALMIRALL.

HEATING APPARATUS.

APPL'IOATION FILED OUT. 21, 1909.

m 1 5,, Patented Sept. 27; 1910.

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J. A. ALMIRALL. HEATING APPARATUS APPLICATION FILED 001. 2'1

' Patentedfiept. 27, 1910.

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INVENTOR WITNESSES:

TH! uonms PETERS cc., WASHINGTON a. c.

STATES PATENT OFFICE.

JUAN A. ALMIRALL, or NEW YORK, N. Y., ASSIGNOR T0 nvANs, ALMIRALL & co,or NEW YORK, N. Y., A FIRM.

HEATING APPARATUS.

Specification of Letters Patent.

Patented Sept. 2'7, 1910.

Application filed October 21, 1909. Serial No. 523,877.

T 0 all whom it may concern:

Be it known that I, JUAN A. ALMIRALL, a citizen of the United States,residing in borough of Brooklyn, county of Kings, city and State of NewYork, have invented certain new and useful Improvements in HeatingApparatus, of which the following is a specification.

This invention aims to provide an improved system and apparatus forheating buildings in which is utilized the exhaust steam from anyavailable source, this steam being used to heat water which is forciblycirculated through the heating pipes; the steam being condensed andreturned generally to the boiler. The exhaust steam carries a quantityof oil after its passage through the cylinders of an engine, and thisoil when the waste steam is finally condensed is found to be very oftenof a heavy quality and otherwise objectionable, especially in feed waterto the boiler. I propose therefore to use a heater which whilecondensing the waste steam and thereby heating water for circulatingthrough buildings will also extract the oil or the greater part of theoil from the steam, so that the latter may safely be fed back into theboiler.

The accompanying drawings illustrate an embodiment of the inventionFigure l is a diagram of the principal parts of the steam circuit andthe heating apparatus. Fig. 2 is an elevation partly in section of theheater. Fig. 3 is a horizontal section on the line 3-3 of Fig. 2. Fig. 4is a similar section on the line l4. of the same figure. Fig. 5 is asection of the upper part of the heater in a plane transverse to that ofFig. 2.

Referring to the embodiment of the invention illustrated, the heater isas a whole indicated in Fig. 1 by the letter A. The water is circulatedby means of a pump B, the water being forced out of the pump through apipe C into and through the heater A, thence by a rising pipe D to asupplementary heater A using live steam and thence to the radiatorsthroughout the build ing from which it returns by way of the return pipeE to the pump. The heaters A and A may be separately cut out of thecircuit by means of the by-passes shown.

The live steam may pass directly from the boiler K through pipe 2 to thesupplementary heater and return by pipe 3 to the boiler; or any otherusual or suitable method of circulating the steam may be used. The

exhaust pipe F of the engine indicated typically by the cylinder Gconducts steam to the heater A having a steam exhaust J and a water dripS, the former leading to the common exhaust pipe S and the water drip Sleading back to the boiler (through a force pump not shown). The steamfrom the engine exhaust F may be cut off from the heater A and conducteddirectly to the common exhaust pipe S by way of the bypass shown.

The exhaust steam from the pipe F is admitted at the top of the heater Aand enters first an upper steam space M from which it passes through anumber of tubes N filling the water heating space 0, the water beingadmitted at P and discharged at Q and constantly filling the spacesurrounding said tubes. The steam then passes to a lower steam space Rwith the exhaust outlet J previously referred to, the water of condensation collecting in the bottom of this steam space and running down intoa water chamber T from which it is removed by the drip pipe S abovereferred to.

From the admission branch V at the top of the heater the steam strikesfirst a series of filter screens which catch the greater part of theheavy oils. These screens are supported between the top of the heaterand a bottom X which is inclined downward toward the front, and which istrough-shaped in transverse section as shown in Fig. 5 so as to collectthe hot oils and lead them down through an outlet Y. The bottom X of thesteam filtering chamber is a substantial distance above the bottom ofthe upper steam chamber so as to allow free access of the steam to allthe tubes N of the water heating chamber.

Between the lower steam chamber R and the water chamber T is arranged abasket of rectangular shape in plan having depending sides Z adapted tosupport the removable wire screens a between and upon the upper one ofwhich is supported sawdust, coke, sea grass, or other suitable materialfor filtering the remaining oil or grease out of the water. In ordinaryuse the Water in the chamber T will stand at about the level indicated,an overflow being provided at this level as indicated at Z). The chamberT thus constitutes a reservoir for the storage of water so as to be ableto supply the varying demands of the force pump which conducts the waterto the boiler. A man-hole 0 is also provided in the side of the waterchamber.

The entire apparatus is made very compact, strong and cheap. The outerwall is composed of a cylindrical tube in two sections (or a greaternumber if desired according to height) connected together by stiffeningrings (Z L-shaped in cross section. The division between the upper steamchamber and the water heating chamber is formed of flanged sheets 0 jperforated to engage the ends of the tubes N. The bottom of the lowersteam chamber R is a removable plate 9 resting upon a circular flange hon the inner side of the shell and carrying on its under face Z-shapedmembers j supporting the sides Z of the basket by means of flanges uponthe upper edges of said sides, the sides Z in turn being provided withinternal flanges upon which the wire screens a may be rested; and theplate 9 having its central portion apertured to permit the passagetherethrough of the water formed by the condensed steam. The filterplates TV for filtering the oil from the steam at its entrance to theheater are made removable, their edges sliding in channelshaped guides Z(Fig. 3) arranged vertically within the shell of the heater. The base Xof the oil filtering chamber is supported by means of short angles mfastened to the bottom of the plate X and to the inner face of the shellof the heater as shown in Figs. 2 and 5.

The exhaust steam from the engine or other steam driven unit enters theheater through the opening V and impinges against the set of screens TVTV which remove a large percentage of the oil from the steam. The steamthen passes through the tubes N being partially or wholly condensed andthe condensed steam drips down through the perforated plate 9 andthrough the filtering material on the screens a a, to the chamber T. Thefiltering material on the screens a a removes the balance of the oilfrom the condensed steam so that the water in the chamber T can bereturned to the boiler and used again without harm.

There are great advantages in maintaining the steam entirely separatefrom the water to be heated. In filtering there is only thecomparatively small quantity of water formed by the condensed steam tobe provided for. Furthermore this system makes possible the separate useof the water which is heated and of the condensed steam. The latter ifundesirable for returning to the boiler may be put to other uses or runotf without use, being however available in case of a failure of thesupply of fresh water. The heated water is entirely uncontaminated bythe oily steam and may be used for any purpose for which its compositionfits it.

\Vhat I claim is l. A heater comprising a shell having a chamber at thetop into which exhaust steam is admitted, means for separating oil outof said steam, an intermediate chamber through which the steam passesfrom said steam chamber in tubes, said intermediate chamber beingadapted for circulation of water about said tubes to heat the water, abottom cham ber in which the steam condensed by its passage through saidtubes is collected and made available for feeding to the boiler, and afilter between said tubes and said water collecting chamber, above thelevel of the water in the latter and serving to extract oil or greasefrom the condensed steam.

2. A heater comprising a tubular shell having a steam chamber M at thetop, filter screens TY therein and in the path of steam entering saidchamber, a water heating chamber 0 below the chamber M and through whichthe steam passes, a chamber R below the chamber 0 and into which thesteam and water of condensation pass from said water heating chamber, awater chamber T below the chamber R and constituting a reservoir for thewater formed by condensation of the steam and from which the water maybe returned to the boiler and. a filter Z between the chambers R and Tabove the level of the water in the latter and serving for extractingoil or grease from the water of condensation.

In witness whereof, I have hereunto signed my name in the presence oftwo subscribing witnesses.

JUAN A. ALMIRALL.

lVitnesses D. ANTHONY USINA, FRED. HlTE.

